Further XD-DOS 2.0 and 2.10 support the [[Dobbertin Harddisc|HD-20]] hard disc drive with 20 MB disc space, that was divided into four partitions of 5 MB. It is also possible to start [[CP/M 2.2|CP/M 2.2]] or [[The Amstrad CP/M Plus|CP/M Plus]] from the hard disc.<br>The XD-DOS ROM contains a broad variety of [[RSX|RSX]] commands. The RSX commad !HELP shows them.
== Download ==
* [[Media:XDDOS210.ROM]] (ROM image)
[[Category:Expansion ROM]][[Category:Operating System]]